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Masteriza [31]
3 years ago
5

Someone knows how to do this? Please, help me!

Mathematics
1 answer:
erica [24]3 years ago
5 0

Answer:

a   K=2

b   A =200

c  B = ±2

Step-by-step explanation:

A = kB^2

When A =50 B=5

Substitute these values in

50 = k * 5^2

50 = k*25

Divide by 25

50/25 = k25/25

2 =k

A = 2B^2


When B = 10

A = 2*10^2

A = 2 *100

A = 200


When A =8

8 =2B^2

Divide by 2

8/2 = 2/2B^2

4 = B^2

Take the square root

±sqrt(4) = sqrt(B^2)

±2 = B

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